Re: [lkcd-devel] Re: What's left over.

Alan Cox
2002-11-05T19:42:25Z

On Tue, 2002-11-05 at 19:19, Werner Almesberger wrote:
> kexec needs:
> - a system call to set it up

Device, file, insmod...

> - a way to silence devices (difference to dumper: kexec normally
> operates under an intact system, so it's more similar to, say,
> swsusp. But I expect that cleaning up device power management
> would also clear the path for more reliable dumpers.)

So you need to register with the power management as the last thing to
be suspended and do a suspend before kexec.

> So not merging it is mainly inconvenient to use, adds the system
> call allocation as a continuous annoyance, and makes it a little
> harder to work on the related infrastructure. But then, despite
> being somewhat obscure, bootimg and kexec have been in use for
> years, the design is about as lean as it can get, and it's cool.
> What more could you ask for ? :-)

I'm mostly worried about how to make these things fit the least
intrusively into the kernel.